Average Co-Inventor Count = 6.35
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Nippon Suisan Kaisha, Ltd. (3 from 121 patents)
3 patents:
1. 6495592 - Tracheal smooth muscle relaxants
2. 6180659 - Tracheal smooth muscle relaxant
3. 5734067 - Anti-oxidative tricyclic, condensed heterocyclic compound